An unemployed college graduate in Tunisia set himself ablaze after police confiscated his fruit cart, cutting off his source of income, late last year, sparking protests about high unemployment, corruption, rising prices and political repression in the North African country. In mid-January, autocratic Tunisian President Zine El Abidine Ben Ali fled the country and an interim government took over. The success of the Tunisian protests in prompting regime change soon spurred similar protests across North Africa and the Middle East.¬†Here is what's happening today:

[11:28 p.m. Monday ET, 5:28 a.m. Tuesday in Libya] Libyan leader Moammar Gadhafi's youngest son, who runs the country's elite special forces for his father's regime, was on an internship program in the United States when public unrest exploded in Libya last month, CNN's Pam Benson reports.

Khamis Gadhafi abruptly cut off his visit and returned to Libya, where he has led the 32nd Reinforced Brigade, known at the Khamis Brigade, in its ¬†suppression of rebel forces.

ABC News was the first to report Khamis' recent stay in the U.S.

The brigade's headquarters was the target of six Tomahawk missiles overnight, according to Vice Adm. William Gortney of the Joint Staff. ¬†Libya's state TV on Monday night broadcast live footage from Gadhafi's Tripoli compound of Khamis dressed in uniform and greeting people. Prior to the broadcast there had been unconfirmed reports that the younger Gadhafi had died from injuries he suffered when a plane flown by a disgruntled Libyan pilot crashed into a military compound while he was there.

With every No. 1 and No. 2 seed knocked out of this year‚Äôs NCAA college basketball tournament, it‚Äôll be Cinderella battling Cinderella next weekend in the Final Four.

It‚Äôs safe to say that few, if any, saw this coming. This year‚Äôs season was marked by the fact that there was not the traditional powerhouse that all other teams were chasing. This year‚Äôs tournament was arguably one of the more wide open in recent memory.

On Monday, the U.S. Supreme Court rejected a condemned Georgia inmate's request that his execution be delayed as he attempts to prove his "actual innocence." Without comment, the justice put aside two separate appeals from Troy Davis, probably setting the stage for the state to set another execution date. Davis, on death row for 19 years, has gained international support for his long-standing claim that he did not murder a Savannah police officer more than two decades ago. A number of key prosecution witnesses have either recanted or backed off their trial testimony. Other witnesses have come forward and said another man at the scene told them he was the actual killer. FULL STORY

MARK BOAL

The American journalist who won an Academy Award in 2010 for the screenplay of "The Hurt Locker" has written an extensive report in Rolling Stone this month about U.S. military atrocities in Afghanistan. "The Kill Team" details how rogue members of the Army's 3rd Platoon, 5th Stryker Brigade murdered at least four Afghan civilians and tried to cover up their deaths.

Last week, Cpl. Jeremy Morlock was sentenced to 24 years for his role in the killings. Others await military trial. Boal's war stories from his time as a military embed have twice become films. "The Man in the Bomb Suit" evolved into "The Hurt Locker." Another became the film "In the Valley of Elah." Now, Boal is reportedly set to produce, and possibly write, a film version of the Wikileaks story.

NICK CHARLES

The greatest boxing commentator since Howard Cosell returned to the ring on Saturday. Former CNN Sports Illustrated anchor Nick Charles called play-by-play on HBO's "Boxing After Dark." The 64-year-old was brought on by HBO after Executive Producer Rick Bernstein read a stirring Sports Illustrated profile detailing Charles' struggle with terminal bladder cancer. Charles was reinvigorated preparing for the featherweight match between Mikey Garcia and Matt Remillard. Though he's suffering from immense pain, the ex-anchor seemed to thrive on air. "Why am I doing this tonight?" he asked at the start of the bout. "To inspire others to do what they love."

It's not enough to call Formula One racing "fast driving." It's more like flying, just really low. The F1 season kicked off Sunday in Melbourne, Australia. Today, we're blowing your hair back with two of the fast and¬†furious: Team Ferrari and Team Lotus. Don't worry, these guys aren't texting while driving, but CNN found out many of the top drivers have a huge following on Twitter.

Vroom! - The "Prancing Horse" rides again. Team Ferrari has 215 Grand Prix wins to celebrate. Will they grab 216? That depends largely on drivers Felipe Massa and Fernando Alonso.

This year's model¬†- Team Lotus' Mike Gascoyne shows us how even the slightest modification to one of these four-wheeled wonders can cost a driver a "make or break" one-hundredth of a second.

Tweets on the track - If you can't make it to the grandstand during a Formula One race, Twitter may offer the next best thing: tweets from the pit and jokes from the drivers.

The wild tiger population in India, home to half of the wild tigers in the world, has increased almost 14% in the past three years, a new census shows.

There are now an estimated 1,706 wild tigers in India, according to the count from India‚Äôs National Tiger Conservation Authority, which cooperated with the World Wildlife Fund, among other partners, in doing the study.

‚ÄúThese numbers give us hope for the future of tigers in the wild, and that India continues to play an integral role in the tiger‚Äôs recovery,‚ÄĚ¬† WWF International Director General Jim Leape said in a statement.

"Recovery requires strong protection of core tiger areas and areas that link them, as well as effective management in the surrounding areas,‚ÄĚ added Mike Baltzer, head of WWF‚Äôs Tigers Alive Initiative. ‚ÄúWith these two vital conservation ingredients, we can not only halt their decline, but ensure tigers make a strong and lasting comeback.‚ÄĚ

As Japan struggles with a nuclear crisis at a power plant damaged during the March 11 earthquake and tsunami, America is marking the 32nd anniversary of its worst nuclear disaster: Three Mile Island.

On March 28, 1979,¬† a partial nuclear meltdown occurred at the Three Mile Island Nuclear Generating Station in Dauphin County, Pennsylvania, near Harrisburg.

When a valve at the plant malfunctioned, dangerous amounts of radioactive gases and iodine-131 were released. At first, Metropolitan Edison, the owner of the plant, insisted that it was a minor incident. However, the scope of the crisis became clear as investigators tried to assess the damage. Members of the U.S. Nuclear Regulatory Commission called for an emergency evacuation of the area, but the NRC outraged the community after approving the direct release of 40,000 gallons of radioactive waste water into the Susquehanna River. No one was injured, but the fear that a nuclear meltdown with deadly consequences could happen in the U.S. became frighteningly real. CNN.com asks: "Is the fear realistic?"

CNN Radio spoke with¬† Tom Kauffman and Nat Goldhaber, who were key players in the Three Mile Island incident. Kauffman was a plant systems operator, and he showed up for work to hear an emergency alarm ringing and the control room a beehive of activity. Goldhaber, in charge of energy issues for the state, began his day about 7 a.m. with a call telling him that there had been a major accident at Three Mile Island and that radiation was heading toward the town of Goldsboro.

The U.S. Supreme Court has rejected a condemned Georgia inmate's request that¬† his execution be delayed as he attempts to prove his "actual innocence." The¬† justices without comment on Monday turned aside separate appeals from Troy Davis, likely setting the stage for the state to set another execution¬† date.

The death row prisoner has gained international support for his¬† long-standing claim he did not murder a Savannah police officer more than two¬† decades ago.

Scientists in Brazil say they've developed a way to use fibers from the fruits to make strong, lightweight plastics that could be used to form car parts.

"The properties of these plastics are incredible," the leader of the project, Alcides Le√£o of Sao Paulo State University,¬† said in a press release. "They are light, but very strong ‚ÄĒ 30 per cent lighter and three to four times stronger. We believe that a lot of car parts, including dashboards, bumpers, side panels, will be made of nano-sized fruit fibers in the future. For one thing, they will help reduce the weight of cars and that will improve fuel economy."

The product is almost as strong as Kevlar, used in bulletproof vests, Le√£o said in presenting his team's work to the 241st National Meeting & Exposition of the American Chemical Society in Anaheim, California,¬†over the weekend.

Among the plant products that could provide raw material for the fibers are pineapple leaves and stems, bananas, coconut shells, agave, and cattails, the scientists say.

According to Emanuel Biondi, public employees federation council leader for New York's Housing and Community Renewal Agency, the winning ticket was shared by seven IT workers there, but a New York Lottery spokesperson was unable to confirm that.

If the winners chose the cash option when buying the ticket, they will receive a one-time, lump-sum payment of $202.9 million. That amount reflects all the cash in the Mega Millions pool and is the sixth-largest jackpot in its history, according to Hapeman.

It's also the single largest sole jackpot-winning ticket ever for Mega Millions sold in New York, she said.

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